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/*-
* Copyright (c) 1998 Doug Rabson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _MACHINE_SGMAP_H_
#define _MACHINE_SGMAP_H_
struct sgmap;
typedef void sgmap_map_callback(void *arg, bus_addr_t ba, vm_offset_t pa);
vm_offset_t sgmap_overflow_page(void);
struct sgmap *sgmap_map_create(bus_addr_t sba, bus_addr_t eba,
sgmap_map_callback *map, void *arg);
void sgmap_map_destroy(struct sgmap *sgmap);
bus_addr_t sgmap_alloc_region(struct sgmap *sgmap,
bus_size_t size, bus_size_t boundary,
void **mhp);
void sgmap_load_region(struct sgmap *sgmap, bus_addr_t sba,
vm_offset_t va, bus_size_t size);
void sgmap_unload_region(struct sgmap *sgmap,
bus_addr_t sba, bus_size_t size);
void sgmap_free_region(struct sgmap *sgmap, void *mh);
#endif /* !_MACHINE_SGMAP_H_ */
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